Introduction: Vertical artifacts, including B lines, are frequently seen in a variety of lung diseases. Their sonomorphology varies in length, width, shape, and internal reverberations. The reason for this diversity is still unknown and is the cause of discussion between clinicians and ultrasound physics engineers.
Aim: The aim of this work is to sum up the most common clinician observations and provide an explanation to each of them derived from ultrasound physics.
Materials and methods: Based on clinical and engineering experiences as well as data collected from relevant literature, the sonomorphology of vertical artifacts was analyzed. Thirteen questions and answers were prepared on the common sonomorphology of vertical artifacts, current nomenclature, and clinical observations.
Conclusions: From a clinical standpoint, the analysis of vertical artifacts is very important and requires that further clinical studies be conducted in cooperation with engineers who specialize in physics.
Keywords: B lines; cardiac edema; interstitial pneumonia; lung ultrasonography LUS; pulmonary fibrosis; sonomorphology of artifacts; vertical artifacts.